Patent US5286027A successfully refreshed from Google Patents.
US5286027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter
Assignee: Individual
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Filing: 1992-10-30
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Granted: 1994-02-15
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Expires: 2012-10-30
Abstract
Abstract A golf putter having a handle and a putter head, the putter head having formed on its bottom surface, three spherical supports for elevation of the putter head above the putting surface, there being formed in the bottom of the putter head, a recessed channel between the spherical supports to aid in the passage of irregularities and debris on the putting surface from the ball-striking surface to the trailing surface.
Inventors
- 👤 Angelo Koumarianos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B53/0433; A63B60/00; A63B60/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A golf putter having a handle and a putter head, said putter head having a ball-engaging surface, a trailing surface, a top surface, a bottom surface, a heel portion and a toe portion, said ball-engaging surface being substantially vertically planer, said trailing surface being curvilinear and having a rearwardly-extending protrusion centrally positioned thereon, a first spherical support and a second spherical support formed on said bottom surface and depending therefrom, said first spherical support located proximate said heel portion and said second spherical support located proximate said toe portion, a third spherical support spaced rearwardly from said first and second spherical supports, said third spherical support located proximate said protrusion in said trailing surface; a first recessed channel disposed between said first spherical support and said third spherical support and a second recessed channel disposed between said second spherical support and said third spherical support, said first and second recessed channels extending rearwardly from a point proximate to said ball-engaging surface to said trailing surface.
Claim 2
Dependent Claim
165 words
A golf putter having a handle and a putter head, said putter head having a ball-engaging surface, a trailing surface, a top surface, a bottom surface, a heel portion and a toe portion, said ball-engaging surface being substantially vertically planer, said trailing surface being curvilinear and having a rearwardly-extending protrusion centrally positioned thereon, a first spherical support and a second spherical support formed on said bottom surface and depending therefrom, said first spherical support located proximate said heel portion and said second spherical support located proximate said toe portion, a third spherical support spaced rearwardly from said first and second spherical supports, said third spherical support located proximate said protrusion in said trailing surface; a first recessed channel disposed between said first spherical support and said third spherical support and a second recessed channel disposed between said second spherical support and said third spherical support, said first and second recessed channels extending rearwardly from a point proximate to said ball-engaging surface to said trailing surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-14 | 1997-08-16 | 1998-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-14 | 2001-08-16 | 2002-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-14 | 2005-08-16 | 2006-02-15 | $7700.00 | Window Closed / Lapsed |